The Bond Between Human and Ultraman: I Become Dark Tiga Against My Will!

【Ultraman Nexus】+【Dark Tiga】+【System】+【Late-blooming growth】+【X System】+【Galaxy Spark transformation device】 (Spark Dolls) More than ten years ago, crimson sparks fell from the void, dealing a devastating blow to human society! Most cities were attacked. Just as people began to celebrate having survived, a dark red glow appeared on the surface of a few meteorites... A System that makes your first battle a disaster arrives... Why has an eighty-year-old woman become young again? And what's with this eerie, completely deserted school... Defeat monsters and get a sports car? What a deal... Why has Taro become a coach, and why won't the protagonist take him up on it? Woohoo~