When I Was in My Third Year of High School, My Sister, the CEO, Wanted to Train Me.

[Urban daily life + older sister + yandere lolita + intimate sister + OL training] Good news: Dad remarried, to a billionaire. Bad news: The eldest sister wants to train me, the second sister wants to spoil me, and the third sister wants to nurture me. Gu Cheng, who had just entered his third year of high school, moved into his stepmother's house. The eldest CEO sister spoke coldly to him, the yandere second sister dragged him into the house, and the gentle third sister threw him in and fed him! They have no scruples, but they don't know... After going to college. Gu Cheng grew wider and wider, and there was something inexplicable in their eyes when they looked at Gu Cheng. The CEO sister lifted Gu Cheng's chin and blew hot air: "Brother, do you want to train your sister?" ... Many years later, Gu Cheng, who is already working, is no longer the young boy he used to be. When he returned home, the third sister prepared the meal, and the eldest sister and the second sister lay lazily on the sofa. "I'm back." "Brother, the three of us all want to wear wedding dresses, but what if we only have one wedding dress?" "Then buy two more?" "Oh, it turns out that my brother wants to take it all..."