Ichitaka Seto is a 16-year-old high school student who is hopelessly in love. He is smitten with Iori Yoshizuki, a classmate who recently became famous after featuring in a magazine. However, Ichitaka has been unable to convey his affection, hung-up on a brutal rejection in the past. As luck would have it, Ichitaka finds himself paired up with Iori in the Freshman Welcoming Ceremony. Despite some mishaps, things go well between the two. But when Ichitaka's childhood friend, Itsuki Akiba, comes crashing into his place, things take a drastic turn, and the three individuals' relationship gets off to a complicated start. [Written by MAL Rewrite]

I''s was published in English by VIZ Media under Shonen Jump Advanced imprint from April 12, 2005 to September 4, 2007.