Locked out areas - W-76 & F-77. Due to story events, it is impossible to fully occupy the map the first time you play it. The maximum occupation rate you can achieve the first time is 89% with various tricks. If you have the silver key 90% is possible.
You can get the Crystal of sacredness for the Sage Cherry Blossom on J-76 (聖桜花), when you replay this stage. The Sage Cherry Blossom is needed for unlocking 03-05 Sylphine route.
Defeating Estelle on this map will give you "The proof of the princess knight defeating (姫騎士撃破の証を)"
E-61 = Healing Water (Small)
E-62 = Orange Nut
F-64 = Healing Water (Small)
X-62 = Orange Nut
Y-64 = Synthesis Fluid
V-65 = Long Sword
Y-68 = Water Bracelet
U-69 = Orange Nut
U-68 = Koroshino Steel
G-69 = Green Nut
L-68 = Holy Staff
L-70 = Water of Bravery (勇壮の水)
J-70 = Leather Armor
J-76 = Crystal of sacredness (神聖の水晶, only when replaying the stage)
E-72 = Yellow Nut
W-72 = Bronze Coin
Z-72 = Antidote Herb
B-72 = Water of Bravery (勇壮の水)
W-76 = Bracelet of teleportation
The two monster portals spawn Water Spirits on turns 10, 20, 30, and 40 (not 50 and 60)
The enemy base serves as a portal that spawns Regular Soldiers on turns 10, 20, 30, and 40 (not 50 and 60)
X-76 -- Silver Gate, requires the Silver Key (not available until later in the game)
F-77 & G-77 -- Cannot open, but the gates will disappear when you use a coin to replay the level
When you replay this stage, there will be a chest with a Holy Crystal (神聖の水晶) at J76.
The chest behind the Silver Door at W76 contains a Bracelet of Teleportation.
On your 2nd and subsequent rounds through the game, it is possible to get the Teleport Bracelet the first time you play this stage. The first time a unit enters Estelle's room at A74, a short scene will play and usually Estelle will attack that unit, which fulfills the stage objective and forces the stage to end. If you use magic to Force Retreat that unit immediately after it enter the room however, Estelle will move up to A74 and if your units are around the area, subsequently leave the room and start chasing your units. With careful territory control you can restrict Estelle's movement without your units getting caught. Once she is far away enough from the entrance to her room, you can send units in to kill the soldiers in the room and get the teleport bracelet. It is not possible, however, to unlock the doors to the room with Sylphine and her servant maids.