"This Isn't the First Time" is the sixth episode of ReLIFE.
SynopsisOnoya An and Oga Kazuomi suddenly visit Arata for a study session, after which Onoya puts the moves on Arata?!
Kazuomi and An pay a visit to Arata's apartment for a study session due to both Arata and An repeatedly scoring poorly on their previous tests. When Kazuomi leaves early, An confesses to Arata that they met previously and that she fell in love with him at first sight. Ryo decides to check up (eavesdrop) on Arata via his cell phone, but learns An and Arata are alone, and rushes to the apartment. An attempts to kiss Arata, but he stops her just as Ryo arrives. Ryo scolds An for her actions, and she reveals she was only testing Arata, and that she is actually Ryo's 27 year old coworker at ReLIFE Laboratory. An also explains that she was supposed to be Arata's supporter, but Ryo took over due to her not finishing her training in time. Both An and Ryo apologize for the trouble she caused, with Ryo secretly apologizing for partially lying of why he is Arata's supporter.