Hlavním hrdinou příběhu je středoškolák Raku Ičidžó. Přestože je jeho otec hlavou jedné z rodin jakuzy, Raku se o záležitosti jakuzy nezajímá a žije si vcelku normálním životem. Jednou na něm však při cestě do školy přistane jeho nová spolužačka Čitoge Kirisaki, která se přestěhovala z USA do Japonska, a je dcerou hlavy jiné, nepřátelské rodiny. Doma se Raku od otce dozví, že se domluvil s otcem Čitoge na tom, že budou Raku a Čitoge tři roky ve falešném vztahu, aby se udržel mír mezi oběma rodinami. To se ale ukáže být náročným úkolem hned z několika důvodů: jednak se oba dva nesnáší, dále proto, že má Raku zálusk na jinou spolužačku, Kosaki Onoderu, a také si Raku uvědomí, že kdysi slíbil jedné lásce z dětství, že až se znovu potkají, tak se vezmou. (Hromino)
Akebono City is a peaceful community overflowing with humanity. Since there was a Power Spot that released the magical power in the community, the people were distressed by the threat of the demon army Jamanga who are gathering Minus Energy (マイナスエネルギー Mainasu Enerugī) from the frightened masses for a sinister purpose. The secret organization S.H.O.T. was formed to protect the people of the community from the Jamanga, concealing their existence as ordinary members of the Akebono Police Station, which considers demons beyond their jurisdiction. Kenji Narukami, a student of the Narukami Dragon God Style (鳴神龍神流 Narukami Ryūjinryū) for fighting demons, arrives at Akebono to fight the demons, eventually getting his wish when he is transformed to RyuKenDo and faces off against Jamanga's forces together with his friends to restore peace in the community.
Aliens have been emigrating to Earth secretly, but only a handful knows about this truth. Living in such a society, the main character Hiroyuki Kudo begins working at a private security organization E.G.I.S. (Enterprise of Guard and Investigation Services). The organization takes care of cases related with aliens, and Hiroyuki works day and night to protect peace. However, there lies a huge secret in him, which he himself is not aware of. He carries Ultraman Taiga’s “particle of light”. The new story begins as Taiga’s powers revive from Hiroyuki’s body!
In this interactive series, you'll make key decisions to help Bear Grylls survive, thrive and complete missions in the harshest environments on Earth.