Uchiha Madara and the others wanted to take the halo railway to more stations, but the system informed them: "The only station currently unlocked is Sicalmari Station. It cannot be used for now. Once other stations have been unlocked, the stations can be used."
Estelle immediately sighed. "We finally found a station, but I didn't expect it to be this troublesome. We have to unlock them one by one!"
Uchiha Madara smiled. "After all, this place hasn't been used for over a thousand years. Did you think someone would be waiting for you to use it, specially spending energy to keep it running on its own?"
"I suppose so," Estelle said. "It's just that the train is so beautiful, it really makes me want to ride it."
"Hehe, Estelle, if you want to ride it that badly, all we need to do is unlock the other stations." Uchiha Madara smiled. "More importantly, I feel like there's something else here that needs unlocking."
"What is it?" Estelle looked around. "It says 'Underground Passage 1 Unlock Switch.' Should we unlock this Underground Passage 1?"
Scherazard said, "Since it says it's the unlock switch for Underground Passage 1, why don't we unlock it? We might need this passage later."
Estelle nodded. "In that case, let's unlock it first, so we don't run into trouble later."
So Estelle unlocked the switch.
Once it was unlocked, the red light above the switch turned green. Somewhere in the distance came the sound of a door opening, and everyone asked in surprise, "Where did a door open?"
Kloe, with her sharp eyes, pointed downward. "I think... the door over there opened!"
Everyone looked in the direction Kloe pointed, and sure enough, a small door had opened. Uchiha Madara said, "Why don't we go through this underground passage?