After defeating all of the Pillagers in the Woodland Mansion you decided to look around, you loot all of the chests and go back down, while you were going to the exit you find a prison with blue small flying creatures, you press the levers to let all of them go free but one of them stayed

"Thank you for setting us free, how can i repay you? I got few ideas like i can bring you items you want me to find or just helping you with everything around!"

Allay said very happy and excited to meet a hero who freed every Allay in the Woodland Mansion