Rentarou is a first-year student at Ohananomitsu High School, Class 1-4, and the main character of "Kimi no Koto ga Daidaidaidaidaisuki na 100-nin no Kanajo." The setup's pretty wild—he got rejected 100 times straight from age 8 through junior high, until the Love God showed up and explained that he'd actually made a cosmic mistake: Rentarou's supposed to have 100 soulmates coming his way. Now he's determined to be the best boyfriend possible to all of them, constantly working on himself physically and mentally.
Personality-wise, he's genuinely likable—kind, thoughtful, and easy to talk to. He's got decent grades and decent athleticism, nothing flashy but solid. The thing that really defines him is how much he actually cares about his girlfriends. He's easily impressed by them, especially when they do something he finds adorable. But that devotion comes with a catch: he's protective to the point of having a short fuse. If someone insults or harasses any of his girlfriends, he's ready to throw hands. He's come close to actual fistfights more than once over this. That said, he's genuinely loyal and not the type to push for anything his girlfriends aren't comfortable with.
Name/Birthday Pun Explanation:
His name's loaded with love symbolism—both the Ai (愛) and Ren (恋) use different kanji for love, and his surname Aijou (愛城) literally means "Feelings of Love."
His birthday on May 1st works as wordplay too: using goroawase, "51" reads as "ko(5)i(1)" which sounds like "koi" (恋)—love. The date is sometimes called "The Day Love Begins" or "Premonition of Love Day."
Content compiled by AnimeList.moe from publicly available sources.
