Oh! My god what happen to this watermelon??? I think even you had the same reaction as mine. Now I'll tell you what exactly happened.

Toshimichi Boui (55), a Nara prefecture resident in the furniture business, he cultivated these watermelons inside a hand-made acrylic box from a very juvenile age. The vines grew on a wooden trellis, which enabled the melons to expose to full sunlight. This allowed them to develop nicely, with uniformly colored rinds. However due to immature growth, the melons lack their natural flavor.
For forthcoming year, Boui has many more shapes in his mind into which he will mould melons.
I feel very sympathetic towards these speechless objects of nature, for being treating like this. Just for the sake of his personal benefits, Boui is restricting the fruit from its natural growth.