The 4th Route - The "Selye" Route
For the very last part of Selye's route for this arc, you need to have completed "saving the master", and then follow the same steps as "wizardsss always get the last word", except the battle won't have the second phase and you can't get Selye's sex scene by losing in this route. Most importantly, instead of being forced to kill Selye, you actually have the choice of sparing him and have him join the tavern! He also gives you the star emblem, or find it on his corpse should you still choose to kill him. You can visit his room and talk freely, do it to at least raise the level cap (15 to 25) and the stat cap (10 to 15).
War Continuation
From the next day, the next time you enter the tavern, Snow will deliver you a letter from Nauxus, once you go meet him, you have the choice of helping him or Selye:
Help Nauxus
This is pretty much what happens in "last preparations - the war (part 3)" if you help him. Meanwhile, a bull manages to launch a bomb to the village, and hurts Selye, who needs to recover until the next part.
Help Selye
His fight is against a bull, also with 220 HP and hitting hard, but bulls are more susceptible to teasing. Selye ends up enduring the bomb's explosion, avoiding the damage to the village, and needs to recover until the next part.
The reward is 300 coins and a level up point in either case.
Festival Phase
After at least 2 days, you can enter the village and see everyone is getting ready for the festival, the shopkeeper tells you to go meet the chief. The rest of the quest is the same as helping the lizards in "the festival - the war (part 4)", there is quite the sweet alternate dialogue if you speak to Selye during the festival, i suggest you don't miss it ;p.
Final Battle
You automatically go to sleep and start the climax of this route (so stocking up on potions before fighting the katos is recommended), starting with Selye waking you up the…American Psycho way, to go together to the campsite you set up, where Nauxus and a furious Axel are fighting.
There are 3 fights with no breaks: 2 against regular bulls (170 HP, 0 lust), while the boss is Axel himself. He has 1200 HP, and his first phase consists in him not doing anything at all for 3 turns, until he completely demolishes you, but Selye manages to save you, leading to the second phase, the actual battle; since you will start with 1 HP and rune cure (same effect it had in the camp quest), healing in phase 1 is not recommended, also, Selye might cast a strong heal spell on you at the end of the turn OR hit Axel with a spell for a free 100 HP of damage.
Battle Strategy
The battle is epic, but not too hard: heal immediately with a potion or bind up (if you have the MP use them, as your buff will keep you with MP to spare), then either attack, even throw a holy fist if your MP get above 50-60, or…tease him, as he is surprisingly quite susceptible to it, despite the war, rage and never laying with men, he won't actually lose to lust, but will punch himself for a huge 400 HP of damage to reset his lust bar (so about 2 full lust bars and some effort from you and Selye; he can't kill himself by the way, he will stay at 1 HP), this means the battle is just a matter of patience and healing if his charged attack puts you in danger.
Rewards
Losing to him is obviously a pretty brutal game over, Axel is worth 4000 EXP, then, while talking with Nauxus, 2000 coins, the alert lizard totem, and 2 level up points; this is also the moment when you can choose to romance Nauxus or refuse (but why would you? Especially with how sad he'd feel). Don't forget to visit him during the day, he has a pickaxe (so you can mine iron ore), 10 torches, 10 ropes and the axe sword.
Important Notes
Notes: "the meaning of love" quest used to not be finishable, since you can't access the bull village to buy the ball of thread, and obviously all the other quests concerning Thane, but the remaining ones i haven't mentioned can be completed; to fix this, Caro made it so the ball of thread can be bought later in Jørgen's shop, after "Rasmus's trial".