Manga Like Kiss de Egaku Ittousei

Chitose can't take his eyes off the guy from the class next door, dozing off in class by the window. Each time Chitose leans out the window to sneak a look at him, he's always there, dozing off as expected. His name: Seno. He's a year older, but according to rumors, he was absent for a year because he was involved in a fight. Chitose is a friendly and sweet-hearted high-schooler and Seno is a mysterious guy. The two polar opposites gradually open their hearts to each other... A chaotic and heartwarming school-love between a cheery puppy and a questionable grade repeater. Note: Chapter counts include extra chapters.