MRXD-052 Mommy, you see... she's being kept by Tatsuya from your class... AIKA

My mom is a lively and energetic mother. My dad went abroad on a business trip, and he seemed a bit lonely. One day, I brought home a friend from cram school named 'Tatsuya-kun.' Unlike me, Tatsuya had a bit of a delinquent vibe and was a type of friend I hadn't had before. Sometime recently, he had been secretly on the phone, and though I wondered 'What's been going on lately?' I continued to live my life as usual. One day, right in front of me, Tatsuya did something to my beloved mom…