HND domestic to international transfer in 80 minutes

Is this doable or are they totally off: I’ll come from Osaka to Tokyo where I will change for MUN

is 80 min enough to transfer from domestic to international in HND, flights are on same ticket and operated by ANA , bought from Lufthansa

ITM 20:20 – HND 21:35 <-> HND 22:55 – MUC 06:50+1

by Ambitious-Treat404