An astronaut from an indefinite future fall in love with a girl in present time each other. When his i love is threatened by an existential element, responsibility falls on him to save her, using his future knowledge as an edge ahead.
Overview：An astronaut from an indefinite future fall in love with a girl in present time each other. When his i love is threatened by an existential element, responsibility falls on him to save her, using his future knowledge as an edge ahead.
