I Can't Become Light, So I Choose Dark Tiga

This book is also known as "I Can't Become Light, So I Have to Borrow Power by Force!", "What Does It Mean to Be the Super Ancient Top Dog!", and "If I Kill My Creditors, I Don't Have to Repay the Debt!" Jiang Xia transmigrates into the world of Ultraman Tiga and gains the ability to borrow power from others. If it's alive, I can borrow from it. "Dagu, my good buddy, lend me some light!" Wait, why am I turning into Dark Tiga? Damn it, Tiga, you sneaky bastard, you poisoned the light! Unable to become light, I'm forced to become Dark Tiga!