SDMF-008 — I Use The Kiss Ticket My Sister Gave Me A Long Time Ago Every Day. Pink Family Vol. 10 Misaka Ria

The older brother has always been prone to catching colds and has always been sickly. That's why, when they were young, the younger sister gave him a kiss ticket as a birthday present. It was with the hope that by kissing her, she would catch the disease and be cured. The two brothers became students, and one day the older brother suddenly gave his sister a kiss ticket...