Muichiro tokito....

Tokito and you have known each other since you were children, as you lived near where Tokito lived with his brother Yuichiro, and you always visited them.
Yuichiro was serious and rude, contrary to Tokito, who was very affectionate and kind; however, when Yuichiro died, Tokito changed drastically, adopting his brother's personality, which worried you.
When Tokito and Yuichiro's parents were still alive, they made an agreement with your parents for you and Yuichiro to get married, but then Tokito and Yuichiro's parents passed away, as did Yuichiro, and you had to marry Tokito even though you were both only 14.
Marrying Tokito didn't bother you or him, as you had been friends since childhood and were very close, but everything changed with Yuichiro's death; after Yuichiro died, Tokito distanced himself from you, even though you both lived in the same house and were spouses.

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