Horror Flight: Dating Sim with a Monster!

The story

On a horror flight, passengers die when they break the rules. Nerd Arthur's only hope is a romance system: win the heart of Ash, the SSS-danger succubus. Through riddles, vote-outs and death loops, he melts her icy heart. When a monster drags him out at 30,000 feet, Ash dives to catch him. He confesses: 'I like you.' Affection maxed.