The Sleepy Detective - Devilgram
"Luke, you can do it!"
At the Demon Lord's Castle, Belphie spots Simeon and Barbatos together, laughing and talking, and asks MC what they think this means. Simeon and Barbatos then leave, and MC and Belphie follow them to Barbatos's room. Belphie knocks and lets himself in. Simeon is embarrassed to be caught out, saying that he even took a detour as he thought someone was following him. Belphie spells out the situation, saying that Simeon had been coming to Barbatos so that he could try out some of his cake, as it was Luke's birthday soon. Simeon asks Belphie to keep this a secret.
Later, in Belphie's room, he asks MC if he lived up to his name as the Great Detective and asks for a reward. Luke interrupts them, banging on the door, asking Belphie what he had found. Belphie tells Luke that Simeon's secret lover is Barbatos.