Tiga's eyes opened in a daze, and as soon as he opened them, he was pierced by a strong light, and when his vision was clear, he found himself lying in the hospital ward, and in front of his bed stood Sero and the King of Ultra, Sero was anxious, and when he saw that Tiga was awake, he hurriedly asked; Tiga, you're awake, it's okay, by the way, how did you turn black just now?

Tiga couldn't hide it, and just wanted to speak, the king of Ultraman next to him made a gesture not to speak, because there were other Ultramans next to him, and the king of Ultraman was afraid that Diga's life experience would be known by all Ultramans, so he created an enchantment that only Sero and Tiga could enter, closed them off, and talked alone.

After Sero and Tiga were teleported into this enchantment, Sero couldn't help but ask Tiga the same question as just now, and Tiga sighed and said; Eh, Sero, you may not believe it, tens of millions of years ago, you and I were enemies, your side was light, and we were darkness, and I was the head of the four dark giants who destroyed the ancient civilization; Dark Tiga.

After speaking, the crystal on Tiga's forehead released a picture; Four dark giants emerged from the flames of a ruin they had destroyed, smiling wickedly.

These words and that cruel picture pierced Sero's heart like a steel needle, and Sero grabbed Diga's shoulder uncontrollably and said madly; No, it's impossible, you're Tiga, you're Tiga, you don't call it Dark Tiga, those four dark giants have nothing to do with you, you're Tiga, you're Tiga who knocked Zofie unconscious with one punch, how can it be Ultraman Dark, it's impossible.

Diga shook his head and said to Sero; Sero, don't be stupid, you and I have been each other's lifelong enemies since we were born in this world, this is fate, and it can't be changed since ancient times, admit it, didn't you see the same black mist that I emitted with Belial just now, that is the symbol of Dark Ultraman, I'm sorry Sero, I've been hiding from you for so long.

Sero let go of the hand that was gripping Tiga's shoulder, and his head hung down, and whispered; Then why do you want to protect me, to block my deadly attacks before the deadly light of Belial, why do you want to protect our planet, why.

Diga said slowly; Because I am Ultraman, Ultraman has to protect everything he loves deeply, regardless of darkness or light, this is Ultraman, this is life.

Sero looked up and said; This is what the King of Ultra taught me, why do you know.

Diga smiled helplessly, this is what I taught to the King of Ultra, 290,000 years ago, at that time, he was only one year old, and I, I am more than 30 million years old.

Sero asked; What did you see when you were born?

Tiga said slowly; At that time, the universe had been opened up, I wandered alone in the universe, watching the changes in the universe, watching the days go by, year by year, getting used to training alone, until I was tired and lying down, I practiced day by day, that is, I didn't know the preciousness of life until I saw a child save a puppy, I didn't know the preciousness of life.

As he spoke, he shook his head, his body gradually became confused, and disappeared into Sero's eyes, Sero's eyes lost their brightness, and gradually lowered his head, at this time Diga had teleported to a wilderness outside the Light, sat there, looked up at the sky, and sighed: Sure enough, light and darkness cannot coexist peacefully after all.