must love tennis

"Hey, are you having fun playing tennis, little one?" - wipe the blood off your face before you talk!Not convincing at all! "If your beloved senior falls into the water with the tennis ball, you..." "My senior will save me." "No, that doesn't seem to be what I asked." "One day, he will bring the tennis ball with him." Come to me." "...Huh?" The protagonist's sex change + growth system + joyful complaints [Eating Attention] 1. The heroine (. 2. The setting of female disguised as a man playing tennis. 3. There are random people, pinch him. .4. The dog blood old stalk Su OOC has it, and the wonderful setting & development has it. [For other details, see the author of Chapter 1.] Above, if you can accept it, welcome to enter the pit~ Search keywords: Protagonist: Ryoma (♀) ┃ Supporting role: Tsunako, older brother, senior, etc.