My try at it (may contain mistakes, but I figured that bad translation > no translation)
Marisa: Yu, everyone, don't be afraid! Mr. Winter is coming! So, my friends, let us prepare for hibernation! Marisa: Yu! I collected those things! Reimu: Amazing Marisa made a large catch! Patchu: We were out of Mr. Leaf and Mr. Mushroom as stock for winter, so I brought them with Mr. Flower and Mr. Bug so we can eat them. Reimu: Yuu, Patchouli is knowledgeable! Alice: I brought things to build a cozy home with! Reimu: Yuuu~ We will be able to take it very easy! Marisa: Yuu...I'm not satisfied...what did Reimu do? Reimu: Yuu? Reimu took it easy? Marisa: Yuu...that's not what I mean... Reimu: YU! Reimu's stomach is empty! Reimu will eat! Patchu: ... by any chance ... did Reimu do nothing at all, I wonder? Reimu: YU?