The quests Luto gives you is soley based on affinity. There are different lvls of affinity. The only way you can get affinity is by calling fellow at Rendevous Point once a day, and calling your fellow on the signal and tactics pearl.
+----------+----------+------+-----------------------------------------+
| Level | Number of | Time | Quest and event |
| of bond | mobs | | |
+----------+----------+------+-----------------------------------------+
| 00 | 15 | 45m | |
| 05 | 15 | 45m | Combat style selection |
| 10 | 15 | 50m? | Weapon upgrade 1 |
| 15 | 15 | 50m? | |
| 20 | 15 | 55m? | Weapon upgrade 2 |
| 25 | 15 | 55m? | |
| 30 | 20 | 55m? | Quest: Picture Perfect, Head equip 1 |
| 35 | 20 | 55m? | Promyvion investigation |
| 40 | 20 | 60m? | Weapon upgrade 3 |
| 45 | 20 | 60m? | Quest: Blighted Glooom, Head equip 2 |
| 50 | 20 | 65m | Weapon upgrade 4 |
| 55 | 20 | 65m | Quest: Regaining Trust, Head equip 3 |
| 60 | 20 | 70m | Weapon upgrade 5, Lock equip 1 |
| 65 | 20 | 70m | Quest: Chameleon Capers, Head equip 4 |
| 70 | 25 | 75m | Quest: Blighted Gloom |
| 75 | 25 | 75m | Lock equip 2, Head equip 5 |
| 80 | 25 | 80m | Quest: Mixed Signals |
| 85 | 25 | 80m | Quest: Mirror Images |
| 90 | 25 | 80m | Weapon upgrade 6, Head equip 6 |
| 95 | 25 | 80m | Lock equip 3 |
| 100 | 25 | 85m | |
| 105 | 25 | 85m | Head equip 7 |
| 110 | 25 | 85m | Weapon upgrade 7 |
| 115 | 25 | 85m | Head equip 8 |
| 120 | 30 | 90m | |
+----------+----------+------+-----------------------------------------+
Its kinda a bad copy and paste job, lol.....but the info is there. I'm on lvl 120 of affinity.