Mebius is a young but powerful rookie Ultra Warrior and has a lot to look forward to. He is chosen as the new protector of the earth. This series is set in the same universe as the original timeline; when Mebius first appears to fight a monster, it is mentioned that this is the first time an Ultraman has appeared on earth in 25 years. Under the disguise of Mirai Hibino, Mebius joins CREW GUYS, the monster attack force of this series.At the start of the first episode, all of the original team members of GUYS, except Ryu, are killed off in their first monster battle. Mirai gathers a group of people he meets in an evacuation to join the new GUYS because he feels they have the right heart to be on GUYS.
梦比优斯是受奥特之父派遣于地球的一名宇宙警备队的新人。日比野未来是在地球的化身，在一次宇宙航行中，宇宙飞船失事，船长的儿子坂宏人为了拯救其他人，牺牲了自己，被吸入了宇宙空间。梦比优斯却没有及时救下宏人，为此心怀内疚。于是，梦比优斯以宏人的形象，化身为地球人，名字日比野未来是由坂哲郎对梦比优斯的祝福语愿你在这星球上未来的每一日都能幸福演化而来。在英普莱扎攻击地球时向CREW GUYS JAPAN的队员们告知自己就是梦比优斯，其身份后来被八卦杂志的记者揭露，打败安培拉星人之后向CREW GUYS的队友道别并离开了地球。