diff --git a/src/c2se/frontend/identity.rs b/src/c2se/frontend/identity.rs
index e04aec2..d85d28d 100644
--- a/src/c2se/frontend/identity.rs
+++ b/src/c2se/frontend/identity.rs
@@ -6,3 +6,5 @@ pub const SUBJECT_CHECK_NICKNAME_FOR_DUPLICATION: &str =
   const_format::concatcp!(SUBJECT, ".CheckNicknameForDuplication");
 pub const SUBJECT_CAPTCHA: &str = const_format::concatcp!(SUBJECT, ".Captcha");
 pub const SUBJECT_SIGNIN: &str = const_format::concatcp!(SUBJECT, ".Signin");
+pub const SUBJECT_SIGNIN_WITHOUT_SECURITY_CODE: &str =
+  const_format::concatcp!(SUBJECT, ".SigninWithoutSecurityCode");
diff --git a/src/c2se/identity.rs b/src/c2se/identity.rs
index ba42fc4..8bcb690 100644
--- a/src/c2se/identity.rs
+++ b/src/c2se/identity.rs
@@ -1,86 +1,108 @@
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct CheckUsernameForDuplicationRequest {
-    #[prost(string, tag="1")]
-    pub username: ::prost::alloc::string::String,
+  #[prost(string, tag = "1")]
+  pub username: ::prost::alloc::string::String,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct CheckUsernameForDuplicationResponse {
-    #[prost(message, optional, tag="1")]
-    pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
-    #[prost(message, optional, tag="2")]
-    pub result: ::core::option::Option<check_username_for_duplication_response::Result>,
+  #[prost(message, optional, tag = "1")]
+  pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
+  #[prost(message, optional, tag = "2")]
+  pub result: ::core::option::Option<check_username_for_duplication_response::Result>,
 }
 /// Nested message and enum types in `CheckUsernameForDuplicationResponse`.
 pub mod check_username_for_duplication_response {
-    #[derive(Clone, PartialEq, ::prost::Message)]
-    pub struct Result {
-        #[prost(bool, tag="1")]
-        pub duplicated: bool,
-    }
+  #[derive(Clone, PartialEq, ::prost::Message)]
+  pub struct Result {
+    #[prost(bool, tag = "1")]
+    pub duplicated: bool,
+  }
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct CheckNicknameForDuplicationRequest {
-    #[prost(string, tag="1")]
-    pub nickname: ::prost::alloc::string::String,
+  #[prost(string, tag = "1")]
+  pub nickname: ::prost::alloc::string::String,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct CheckNicknameForDuplicationResponse {
-    #[prost(message, optional, tag="1")]
-    pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
-    #[prost(message, optional, tag="2")]
-    pub result: ::core::option::Option<check_nickname_for_duplication_response::Result>,
+  #[prost(message, optional, tag = "1")]
+  pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
+  #[prost(message, optional, tag = "2")]
+  pub result: ::core::option::Option<check_nickname_for_duplication_response::Result>,
 }
 /// Nested message and enum types in `CheckNicknameForDuplicationResponse`.
 pub mod check_nickname_for_duplication_response {
-    #[derive(Clone, PartialEq, ::prost::Message)]
-    pub struct Result {
-        #[prost(bool, tag="1")]
-        pub duplicated: bool,
-    }
+  #[derive(Clone, PartialEq, ::prost::Message)]
+  pub struct Result {
+    #[prost(bool, tag = "1")]
+    pub duplicated: bool,
+  }
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
-pub struct CaptchaRequest {
-}
+pub struct CaptchaRequest {}
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct CaptchaResponse {
-    #[prost(message, optional, tag="1")]
-    pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
-    #[prost(message, optional, tag="2")]
-    pub result: ::core::option::Option<captcha_response::Result>,
+  #[prost(message, optional, tag = "1")]
+  pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
+  #[prost(message, optional, tag = "2")]
+  pub result: ::core::option::Option<captcha_response::Result>,
 }
 /// Nested message and enum types in `CaptchaResponse`.
 pub mod captcha_response {
-    #[derive(Clone, PartialEq, ::prost::Message)]
-    pub struct Result {
-        #[prost(string, tag="1")]
-        pub security_code_hash: ::prost::alloc::string::String,
-        #[prost(string, tag="2")]
-        pub image: ::prost::alloc::string::String,
-    }
+  #[derive(Clone, PartialEq, ::prost::Message)]
+  pub struct Result {
+    #[prost(string, tag = "1")]
+    pub security_code_hash: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub image: ::prost::alloc::string::String,
+  }
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SigninRequest {
-    #[prost(string, tag="1")]
-    pub security_code_hash: ::prost::alloc::string::String,
-    #[prost(string, tag="2")]
-    pub security_code: ::prost::alloc::string::String,
-    #[prost(string, tag="3")]
-    pub username: ::prost::alloc::string::String,
-    #[prost(string, tag="4")]
-    pub password: ::prost::alloc::string::String,
+  #[prost(string, tag = "1")]
+  pub security_code_hash: ::prost::alloc::string::String,
+  #[prost(string, tag = "2")]
+  pub security_code: ::prost::alloc::string::String,
+  #[prost(string, tag = "3")]
+  pub username: ::prost::alloc::string::String,
+  #[prost(string, tag = "4")]
+  pub password: ::prost::alloc::string::String,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SigninResponse {
-    #[prost(message, optional, tag="1")]
-    pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
-    #[prost(message, optional, tag="2")]
-    pub result: ::core::option::Option<signin_response::Result>,
+  #[prost(message, optional, tag = "1")]
+  pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
+  #[prost(message, optional, tag = "2")]
+  pub result: ::core::option::Option<signin_response::Result>,
 }
 /// Nested message and enum types in `SigninResponse`.
 pub mod signin_response {
-    #[derive(Clone, PartialEq, ::prost::Message)]
-    pub struct Result {
-        #[prost(string, tag="1")]
-        pub access_token: ::prost::alloc::string::String,
-    }
+  #[derive(Clone, PartialEq, ::prost::Message)]
+  pub struct Result {
+    #[prost(string, tag = "1")]
+    pub access_token: ::prost::alloc::string::String,
+  }
+}
+
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct SigninWithoutSecurityCodeRequest {
+  #[prost(string, tag = "1")]
+  pub username: ::prost::alloc::string::String,
+  #[prost(string, tag = "2")]
+  pub password: ::prost::alloc::string::String,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct SigninWithoutSecurityCodeResponse {
+  #[prost(message, optional, tag = "1")]
+  pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
+  #[prost(message, optional, tag = "2")]
+  pub result: ::core::option::Option<signin_without_security_code_response::Result>,
+}
+/// Nested message and enum types in `SigninWithoutSecurityCodeResponse`.
+pub mod signin_without_security_code_response {
+  #[derive(Clone, PartialEq, ::prost::Message)]
+  pub struct Result {
+    #[prost(string, tag = "1")]
+    pub access_token: ::prost::alloc::string::String,
+  }
 }
diff --git a/src/ss/identity.rs b/src/ss/identity.rs
index 8908628..2fcda67 100644
--- a/src/ss/identity.rs
+++ b/src/ss/identity.rs
@@ -7,6 +7,8 @@ pub const SUBJECT_CHECK_NICKNAME_FOR_DUPLICATION: &str =
   const_format::concatcp!(SUBJECT, ".CheckNicknameForDuplication");
 pub const SUBJECT_CAPTCHA: &str = const_format::concatcp!(SUBJECT, ".Captcha");
 pub const SUBJECT_SIGNIN: &str = const_format::concatcp!(SUBJECT, ".Signin");
+pub const SUBJECT_SIGNIN_WITHOUT_SECURITY_CODE: &str =
+  const_format::concatcp!(SUBJECT, ".SigninWithoutSecurityCode");
 
 pub const EVENT_SUBJECT_AFTER_SIGNIN: &str = const_format::concatcp!(EVENT_SUBJECT, ".AfterSignin");
 pub const EVENT_SUBJECT_AFTER_SIGNOUT: &str =
@@ -141,6 +143,40 @@ pub mod signin_response {
     pub access_token: ::prost::alloc::string::String,
   }
 }
+
+/// subject = bet.beteran.ss.identity.SigninWithoutSecurityCode
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct SigninWithoutSecurityCodeRequest {
+  #[prost(message, optional, tag = "1")]
+  pub client: ::core::option::Option<crate::models::core::network::Client>,
+  #[prost(message, optional, tag = "2")]
+  pub request: ::core::option::Option<signin_without_security_code_request::Request>,
+}
+/// Nested message and enum types in `SigninWithoutSecurityCodeRequest`.
+pub mod signin_without_security_code_request {
+  #[derive(Clone, PartialEq, ::prost::Message)]
+  pub struct Request {
+    #[prost(string, tag = "1")]
+    pub username: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub password: ::prost::alloc::string::String,
+  }
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct SigninWithoutSecurityCodeResponse {
+  #[prost(message, optional, tag = "1")]
+  pub error: ::core::option::Option<crate::protobuf::rpc::Error>,
+  #[prost(message, optional, tag = "2")]
+  pub result: ::core::option::Option<signin_without_security_code_response::Result>,
+}
+/// Nested message and enum types in `SigninWithoutSecurityCodeResponse`.
+pub mod signin_without_security_code_response {
+  #[derive(Clone, PartialEq, ::prost::Message)]
+  pub struct Result {
+    #[prost(string, tag = "1")]
+    pub access_token: ::prost::alloc::string::String,
+  }
+}
 /// subject = bet.beteran.ss_event.identity.AfterSignin
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct AfterSigninEvent {