[Arknights] Expeditioner's Joklumarkar (IS4) Ending 4 First play

the boss name↓
Lugalszargus, Lord of the Almanac
(Gold boss)
Kharanduu Khagan, Scourge of the Land
(Red boss)
ㅡ How to enter ㅡ
1. Enter the shop and purchase special artifacts (1 cost)
2. Enter to incounter for special battle
3. get special artifacts (complete route release)
4. go up to the 6 floor
5-1. submit 3 'Anti-Interference Index'
have : no penalty
haven't : ATK, HP -15%
5-2. submit 50 originium ingot
have : no penalty
haven't : -4 squad size
5-3. submit 20 Hope
have : no penalty
haven't : -12 Life point
6. fight boss battle
be extremely expensive to enter..