Pleasant
Happy
noun, な adjective
ゆかい
快い (こころよい) Pleasant
快適 (かいてき) Pleasant, Agreeable, Comfortable
愉快 (ゆかい) Pleasant, Happy
不愉快 (ふゆかい) Unpleasant, Unhappy, Discomfort, Disagreeable
不快 (ふかい) Unpleasant, Uncomfortable
忌まわしい (いまわしい) Unpleasant, Disgusting, Inauspicious
You ゆ should kayak かい because it's Pleasant.
Seeing you ゆ kayak かい makes me Happy.