In 'Chronochums: Hello, Who's There?', players take on the role of Max, an ordinary teenager who accidentally stumbles upon a bizarre pocket dimension where time flows differently. Here, they encounter a quirky cast of characters—eccentric historical figures, future tech enthusiasts, and even their own alternate selves—all desperately trying to fix a temporal anomaly that threatens to collapse their timelines. As they navigate through mind-bending puzzles and engage in witty dialogue, players must uncover hidden truths about the nature of time and friendship while dodging mischievous time spirits. The choices players make affect the outcomes of their timelines, leading to multiple endings that reveal different aspects of Max's identity and destiny.