■ Season Duration
- 4/1(Sat) 00:00 ~ 4/15(Sat) 24:00 (UTC)
<R+ Lilienthal>
- Illustrator : libby
- Type : Electric
- Location : Class
- At Max Lv(90)
HP : 12943
AK : 17546
- Skill : Unpowered Aircraft
Effect : 120% of ATK on the first turn (Lv.1
*Cast Probability : 56%
<R+ Amelia>
- Illustrator : ringo
- Type : Frozen
- Location : Exploration
- At Max Lv(90)
HP : 13862
AK : 16643
- Skill : Transcontinental Flight
Effect : 110% of ATK after sidian's level 40 (Lv.1)
*Cast Probability : 39%
※ "R+ Lilienthal", "R+ Amelia" will have 2x ATK applied between 4/16(Sun) 00:00 ~ 4/30(Sun) 24:00 (UTC)