One of the better characters to do this with is Store Manager. His respectable bulk and high ATK makes it easier to go on the offensive, while recovering lost hp from any battles. Be sure to bring Metallic Monocoque as well, as it helps in avoiding damage from discards & DMG effects.
Another great character is Ellie, as her excellent stats make it easier to stay alive while dealing damage, and her hyper, Ellie's Miracle is versatile in its use, allowing both extra attack and evasion, to stay alive. Ellie also has the benefit of using cards to heal, unlike Manager.
Ideal fields are small fields, with lots of Encounter panels, such as Vortex and Sakura Smackdown, for the red panels in the middle. You need lots of chances to attack, or your HP will dwindle quickly.
Ideal field events are BattlefieldBattlefield Every 6 Chapters, all Bonus and Drop panels will become Encounter panels. This effect lasts for 3 Chapters. and RegenerationRegeneration Every 5 Chapters, all Units recover 1 HP at the beginning of the Chapter. as you do not need to heal with the card, you just need to deal damage. CharityCharity Every 5 Chapters, all Players will receive 1 Card at the beginning of the Chapter. and MiracleMiracle Every 5 Chapters, all Bonus, Drop, Draw, Encounter, Move, Warp Move, Heal panels, and Damage panels will become Double panels accordingly. This effect lasts for the duration of the Chapter. are unadvised if playing Store Manager, as drawing cards over 3 hurts you.
Play against Marie Poppo, as her high HP and soft stats make her the perfect target for damage.