|This is part of the Sky Pretty Cure Series!|
|Season||Sky Pretty Cure Series|
|First Appearance||Episode 73|
- Kiishi Topaz - Topaz and Masaru met when Topaz thought about joining the Theater Club. As he was impressed by her 'acting' and passion, he wanted her to join the club. But even after she rejected, he knew that she'll join soon.
- Kuraisoba Quartz - Ever since Masaru has met Low for the first time, he prefers to have no opinion about him. However, it is known and obvious that he is not too fond of him or his personality. Masaru considers Low as annoying and would prefer him staying away from him and/or the theater.
- Yoiki Chris - Masaru's "rival", even though he can't consider Chris as an actual rival in any case. Though being unimpressed by his daily performance, Masaru can't say anything bad against Chris. Like many people he can't take Chris very serious and due to that, he also doesn't take their rivalty too serious.
- Masaru shares his name with Kenzaki Makoto from Doki Doki! Pretty Cure. However, he uses it as last name, while Makoto uses it as first name.