Who Modded My Stardew Valley?

According to how the game normally goes,

After the opening cutscene, "quitting your stressful big-city job and returning to the small town of Pelican Town to inherit your grandfather's long-abandoned farm," you should become a diligent farmer, improving your farming skills while building friendships with the townsfolk.

It's peaceful here. The greatest dangers are the ghosts, slimes, little dinosaurs, and various insects in the mines. But even if they attack you until your health bar hits zero, they'll kindly let you go, and some friendly locals or a professional emergency medical team will take you somewhere safe.

Until one day, a bus brings a group of unusual visitors.

As usual, you ignore these background NPCs who have portraits but no storylines, wondering whether there's an event today and hoping the festival won't stop you from heading to the beach to catch a legendary fish.

Then, as you pass by, an NPC with blond hair and a gray suit approaches you with another NPC, a little shorter, with black hair and a black uniform. They ask for directions and whether you know where evil spirits are haunting the area. Apparently, their phone broke on the way here, and they accidentally lost their client's contact information.

Your response:

Unbelievable! Someone has betrayed our ten-heart friendship!

Is there anything my all-purpose farmer can't handle?

But to show off Pelican Town's simple, honest ways, you decide to hear their request first.

"Can I help you with anything?"

Theme: How did you know I wanted to give everyone a happy ending?