Introducing Oto Ichikawa, Sumino Ichikawa's Lost Sister

Some narratives tend to stretch for too long. Thankfully, Gozyuger decided not to do this with Oto Ichikawa -- Sumino Ichikawa's sister. Mayu was looking for her sister even before the series started. Oto went missing as a child and returned as a teenager. It's not explained (or did I miss something) how old Oto is. The actress Alice Hiyama is 17, turning 18 this year. The actress Maaya Imamori is 19 years old. Funny enough, Maaya's playing an older character. Alice may be playing a middle school student instead of a high school student! There's a bad catch. Oto must wear the Shinkenger Universe Ring or she'd fall into a comatose-like state. The ring was later snatched away by Fire Candle at the end of the episode. Talk about having to wear that ring ALL THE TIME just to stay awake. Oto had an accident when she was little. What was this accident then? This would create some world-building here! Sumino later talks about a gray-eyed man from the past. Just who is th...