Gomen, Daikirai - Side:H

At work, Hase unexpectedly reunites with Mitsuki, the girl he'd liked since high school. Back then, he thought she was too serious and hard to get along with, but after seeing her smile, he wanted to see that smiling face more than anything. However, after accidentally hurting Mitsuki, Hase thought he couldn't allow himself these feelings anymore...!? This is the other side of Sorry, I Hate You, a story of first-love, told from Hase's perspective!

(Source: Shogakukan, translated)

Note: Chapter count includes a bonus chapter and the one-shots "Kimi shika Iranai Retsujou" and "On The Start Line."