The Shion Twins, who are the most popular, handsome young boys at Seika High School. Kaito Shion ( Shion Kaito) who is the cool and quiet. Akaito Shion (Shion Akaito) who is the flirt. Len Kagamine (Kagamine Len), who is the twin brother of Rin, were childhood friends with the Shion Twins but has no memory after the incident. Mikuo Hatsune (Hatsune Mikuo), who is an older brother of Miku, focuses on his music career but one of the Shion twins holds him down, not on purpose. Who will go with who? [This is a yaoi fanfic meaning boy x boy. If you are not comfortable with gay fanfic, please do not read this! Thank you~]