Steins;Gate 0

Synopsis

The armed men attempt to abduct Kagari but are forced to flee empty-handed when Yugo Tennouji arrives and disarms them. Concluding that group are not the same Rounders he had previously encountered, Rintaro approaches Tennouji, using his knowledge over him being a member of a Rounders to acquire his help in protecting Kagari. Meanwhile, as Maho continues to find herself locked out of Amadeus, Luka tries to question of Suzuha over what everyone is keeping from him. Later, Rintaro suddenly receives a distress call from Amadeus, at which point his Reading Steiner activates and he is sent to another world line where Kurisu is still alive.

(Source: Wikipedia)