Who can help me sort out the story of the infinite bell with the demon tail? I'm a little confused.

Lucy's father sent an hour hand, and the army came to grab it. The demon tail and the army began to compete for other parts (Lucy wanted her to collect them for her father's sake). When Oracion Seis, a freshman, collected all the parts, he snatched them away and took away the complete infinite clock. Only then did he know that Lucy's father's real idea was not to collect clock parts. So Kana used the divination team to ask the demon-tailed compatriots to retrieve the infinite clock.