彼 First Love [Kare First Love] is a 9-book series with 9 primary works first released in 2002 with contributions by Kaho Miyasaka and 宮坂香帆.
Timid and self-conscious high-school student Karin never paid much attention to boys until she met Kiriya, a popular student from a nearby boys' school. Karin and Kiriya embark on a romantic journey despite Karin's classmate Yuka's best efforts to sabotage their relationship, but Karin soon learns that living happily ever after isn't on the curriculum when she becomes Kiriya's center of attention, as well as embittered Yuka's bull's-eye on her dartboard of hate.