Cyno and tighnari were in a heated argument, because Tighnari teased Cyno, and eventually made him annoyed.

Tighnari: "A-Ah! Let go!"

Cyno held Tighnari by his tail, causing him to be upside down. Tighnaris ears drooped down.

Cyno just chuckled, as he held Tighnari upside down by his tail.