A Beautiful Man's Dispostion (美しい男の意地 Utsukushī Otoko no iji) is the 7th episode of Ultraman Leo.
Gen is suspicious of the strange flower Kaoru found. Little does anyone realize that the flower is under the control of the evil Kendoros!
Kaoru finds an alien flower growing. Gen senses it is of alien origins, but does not have the heart to take it from her. Dan is furious, and orders him back, but too late. It grows large and flies to the monster Kendoros, who uses it as a weapon to defeat Leo.
The monster than rampages, killing and destroying, taking out several MAC fighters along the way. Meanwhile, Dan trains Gen by throwing metal boomerangs at him until he is able to catch them. He is then called off, but Gen continues training with his friends.
Eventually he returns to fight the monster, and using his newfound skills, defeats it.
Ultraman Leo Volume 2 features episodes 5-8.