Manga At the End of Your Tether (2019)

Nervous about having to see his ex, Ludo Carre gives her a phone call to explain he'll be returning to the old base they grew up on. Big laughs and a familiar sort of cadence in Arlo's voice don't just instantly calm him down -- they make him excited to see her. That excitement only hurts him more when they show up the next day and find out Arlo has been missing... for the last week.