Uyeonui Uhyeon

Se-Jun, who is timid and has low self-esteem, escapes his gaslighting ex-boyfriend and goes on a foreign package tour in order to meet a new partner. His new partner stands him up, and he's left all alone, until he meets the French-Korean U-Hyeon at a convenience store where he stopped to eat. U-Hyeon suggests Se-Jun travel with him...
(Source: BOMTOON, translated)