"Dokidoki" is a Japanese onomatopoeia for a heartbeat sound, often used in anime and games to express excitement or nervousness. "Little" probably refers to the game Little Witch Academia, but maybe another context. "Ooyasan" translates to "big house" or "main house," but in anime and games, it's often used as "Ojousan" or "Miss" for a higher-class individual. Wait, maybe they meant "Ojousan"? Or perhaps a specific character's name. "2nd" could mean it's the second season, a second version, or part of a series. "Gameripm" is probably "game rip m" short for "rip" as in ripping content, maybe a fan-made version or a pirated copy.