Shingo bawling out Hayato and grousing to himself about Mami's tardiness for a concert obfuscates the ironic reality that she is actually right under their noses computing how to make a flashy entrance while making a deal with the devil in the nearby park as Yuu befriends an esper named Makoto Uchiyama complete with an unlimited backstage pass to visit her at home. True to Mamoru's admonition of caution about him, Makoto wastes no time in advancing his agenda of having Yuu all to himself when he first unleashes his psychic rage unto Shingo for decrying Hayato's generosity; while Makoto is overjoyed to spend time with Yuu and even avoids wearing out his welcome that evening, Posi and Nega comparing notes about the day's events prompts Yuu to seriously consider Mamoru's earlier admonition -- especially when Makoto exerts himself in an emphatic but unsuccessful attempt to destroy her school. Frightened of there being fatalities if Makoto should ever lash out with his psychic powers regardless of its physiological cost on his body, Yuu is ultimately forced to avoid Makoto even though she does not want to; while this tactic gets his attention, it is only after Creamy Mami and Pino-Pino's collaborative intervention that Makoto sees the light and turns over a new leaf.
Makoto, un bambino dotato di poteri soprannaturali desidera giocare solo con Yu, per questo scatena la sua ira contro oggetti e persone che lo ostacolano. Solo Pino Pino riesce a sottrargli i poteri di cui è dotato.
優が知り合った男の子、内山誠は超能力少年だ。そのため友達ができない誠は気に入った優を独占しようと、超能力で優の周囲に誰も近づけさせない。見かねた優は、マミに夢中になったフリをする。マミさえいなければと考えた誠は、マミのコンサートに現れ、会場を大混乱させてしまう…。
