Reading this until the latest chapter. MC is the only innocent one in this. Good storytelling, author managed to portrayed accurate middle schooler boy, not exactly children, but definitely not grown up. He's so innocent. He forget that its a dating app and doesnt yet fully understand what the meaning of dating and milf is.
He's lonely and desperate for maternal love, he using dating app, only thinking about hug and headpat. Meanwhile Saki the oneesan found herself a hidden gem, a literal cute, sweet, innocent shota, and now her eyes are fixed upon this boy.
All the main chara other than MC are jerks. His dad is jerk, Saki is jerk, and Riko is jerk. She only care when shes jealous of Saki