Otaku no Boku ga Ichigun Gal to Tsukiaeru Made no Hanashi

The protagonist, Tomohiko Suzuki, secretly harbors feelings for Ruka Ayase, a popular girl in his class. Determined to get even a little closer to Ayase, Suzuki decides to take action. He tries going to school with a hairstyle he’s not used to, but his classmates’ reactions aren’t very positive… However, he manages to strike up a conversation with some of the top-tier gals who show interest in him!? And to his surprise, they even start calling him by the nickname “Chom”! Taking this day as a starting point, Chom begins talking with Ayase’s group and works hard to become friends with them. Then one day, he runs into Ayase as she’s heading home. “Chom, are you free? Then come over to my place—tell me some funny stories.” Unexpectedly invited to her house… When Ayase leaned in and asked, “Hey, Chom, do you have a girlfriend?” he couldn’t hold back… “Sure, show me your dick. I’ll jerk you off ♡.” An unexpected turn of events!?!?

(Source: Fanza, translated)