Aijou, Rentarou

愛城恋太郎

A first-year student in Class 1-4 at Ohananomitsu High School and the protagonist of Kimi no Koto ga Daidaidaidaidaisuki na 100-nin no Kanajo. From the age of eight months until his junior high graduation, Rentarou faced 100 consecutive rejections of love proposals. He is eventually informed by the Love God that, due to an error made at Rentaro's birth, he has 100 soulmates whom he will soon meet. He constantly strives to be the best boyfriend possible, tempering both his body and mind.
Rentarou is a kind, thoughtful, serious, and sociable boy who is easy to get close to. He knows how to study well and is relatively athletic. Rentarou genuinely loves all his girlfriends more than anything else, and is very easily impressed by their actions, especially when they do things that he finds cute. However, Rentarou is also very protective of his girlfriends and often needs to be calmed down if someone insults or harasses any of them, hinting at a somewhat short temper. There have been times when he almost got into fistfights with people who insulted or slighted his girlfriends, or when he felt that his girlfriends were in danger.
Not only that, but on multiple occasions he has displayed loyalty and is not dirty-minded nor willing to do anything that his girlfriends do not want.
Name/Birthday Pun Explanation:
Both the Ai (愛) and the Ren (恋) in his name are spelt with different kanji for love. His surname Aijou (愛城) means "Feelings of Love".
Rentarou's birthday is on May 1st. With Goroawase, 51 can be read as "ko(5)i(1)", the word for "love" (恋). Due to this, this day has also been called "The Day Love Begins (恋がはじまる日) (Koi ga hajimaru hi)" and "Premonition of Love Day (恋の予感の日) (Koi no yokan no hi)".