Keisuke Niijima

The protagonist. An extreme wife-lover. Even after Takae passed away, his affection remained unchanged, and he has not remarried. However, due to his overwhelming love, he sometimes engages in potentially problematic behavior, such as hugging an elementary school girl who he believes is the reincarnation of his wife. After being separated from Takae by death, he barely conversed at work and led a dull life, but he gradually regained his brightness after starting to interact with "Takae/Marika."