believe me I'm not lost at all, ofc I played all the routes. V is responsible for everything that happened. One cant even blame Rika with her mental state, but V knew what he did all along. He knew Rika abused Saeran, he knew Rika was unstable and FOUNDED A HARMFUL RELIGION. He had to call the police as soon as he found out . He had to tell the others what was going on. He acted selfishly. Because of his 'oh so sense of responsibility' Yoosung, Saeran, and basicly everyone suffered. Just because he is handsome you cant make his actions justifiable. He shut everyone out, Jumin was his best friend, both him and Rika's, he could have just asked for his help. With Jumins connections, I wonder why he didn't. Yoosung was her cousin, if he told him about Rika's unstability before, he could have helped. And Seven, Saeran was his brother. V and Rika basicly promised him to protect Saeran, and in the end what they did was abusing him. He is no saint. He deserves no sympathy. He should have asked for help. He should have used that brain of his.
In the end what he did was just BEGGING Rika to not involve innocent people into her scheme, FEELING SORRY about what happened to Saeran and everyone, and not doing anything about all this at all.