Ai Mochizuki

Ai Mochizuki is Nagi Umino's first love and childhood companion, who once relocated to China and demonstrated her extraordinary intellect by skipping grades to graduate from university at the age of 13. Upon returning to Japan, she established herself as a celebrated internet singer and has been actively pursuing Nagi in order to honor a marriage promise made during their early years. Her assertive nature, tinged with a hint of obsessive devotion, has introduced significant turbulence into the romantic dynamic surrounding the protagonist.