Wakamiya Tomisaburou

Grandfather of protagonist. A survivor of ww2 and self made millionaire in single generation. Because of his achievements views his children and grand children as disappointments. After seeing his grand child and possible heir doing nothing with his life demands he proves himself as man. Due to being vague and refusing to elaborate seems to only causally mention how disappointed he hasn't had gf or mistress by now. Demands he proves himself as a man and until then is kicked out of family home. Has a weak spot for pretty women.