SPRD-926 If you insist, I'll do it. Mom's cram school teacher Tsukishima Kogiku

Kogiku, who remarried my father 10 years ago, is my stepmother. My lively father passed away two years ago, and Kogiku, who seemed lonely, now seems to have regained her energy. The cram school she ran at home has also reopened, and it feels like things are finally back to normal. Lately, it seems the cram school has been busier, and I'm a bit worried about Kogiku's health. When I wondered why she had become so busy recently, I discovered a shocking truth. It appears that Kogiku is conducting indecent lessons. Although it's hard to believe, when I peeked at her teaching scene, I found that Kogiku, my stepmother, was in a serious situation...