Mao confessed her feelings to Makoto Sunakawa, but he turned her down as he states he didn't like her.
Both used to be in the same school. Takeo was in love with her, but she didn't share his feelings. As she was turned down by Makoto Sunakawa, it's likely that she was badmouthing Takeo.
Both used to be in the same school. Kayomi was in love with him and even confessed her feelings, but Makoto turned her down.
- Her name, Kayomi, is written in hiragana (かよみ), which has no special meaning.