Puns in the original:

First panel: Renko says 料理 (ryouri, cooking) — Merry says 両輪 (ryourin, two-wheeled)
Last panel, right: Renko says トリュフ (toryufu, truffle) — Merry says トリョウ (toryou, paint)
Last panel, left: Renko says ケーキ (keeki, cake) — Merry says 計器 (keiki, meter/gauge/instrument)

I hope you can have mercy.