The two of them are now living together, but Ai was the one who fell in love with Tamotsu and made a Kokoro by the fact that he never said "I love you" properly and never expressed his feelings in words. One day, these frustrations had been building up without her realizing it, and when the topic turned to Tamotsu's ex-girlfriend, she was shocked to compare her to him... 4th It is included in the "season"