Sekai Kamiki
His personality is similar to that of Domon Kasshu's. Like him, Sekai uses a close combat oriented Gunpla, utilizing his martial arts skills.
It appears that Sekai doesn't know that much about social activities, such as when he told his sister that he was going out on a date. He then asks her questions about dates, such as what to wear. He does however manage to figure out that Yuuma only spent time with them so he could be with his sister Mirai, and blushed when kids wanted him and Fumina to kiss. He is a very straightforward person which is noticed by many people who approach him. This aspect of his personality is both a asset and a weakness when it comes to Gunpla battle which is shown through his battles with Shimon Izuna and Team SRSC.
Unlike both his teammates, who are often concerned with winning, he only enjoyed fighting battles for enjoyment, and only gets excited about fighting someone strong and never for once shows any worries about the possibility of losing before battles.
Being considered as the "Second coming of Reiji" due to his natural flair for Gunpla battle, Sekai also bears a strong resemblance to Reiji in both appearance and personalities. Like Reiji, Sekai initially has no knowledge about Gunpla or Gunpla Battle and was only interested in Gunpla because he found a outlet to use his martial arts skills to the fullest and it is fun fighting battles, he begins to learn more about Gunpla throughout his fights and comes to gradually fall in love with Gunpla in general along the way, eventually vowing to dedicate himself to learn more about Gunpla and grow as both a builder and a fighter. Similar to how Reiji did not notice Aila's romantic feelings for him, Sekai is also dense in the this area as even though Fumina, Kaoruko, and Shia are fighting for his affection right in front of him, he still has no clue about it.
As a martial art practitioner, Sekai has high tolerance to pain and can withstand crippling damage from assimilation.
