Summer Unchou Kanu - is a very strong fire attacker. Let's check her skills.
Source - Japanese game wiki.
High HP and Strong attack make her a great middle fighter who can easily destroy wind attribute enemies. Use her together with Koumei Shokatsuryou, a green hair healer.
Summer Unchou Kanu SD illustration
The second part of the summer event, new boss - "Yomi Hirazaka" / 黄泉比良坂.
Be sure to finish the event, get all free dragon balls, free sr hero, and gears.